But what makes a culture? Each culture is unique and myriad factors go into creating one, but I’ve observed at least six common components of great cultures. Isolating those elements can be the first step to building a differentiated culture and a lasting organization.

1. Vision: A great culture starts with a vision or mission statement. These simple turns of phrase guide a company’s values and provide it with purpose. That purpose, in turn, orients every decision employees make. When they are deeply authentic and prominently displayed, good vision statements can even help orient customers, suppliers, and other stakeholders. Nonprofits often excel at having compelling, simple vision statements. The Alzheimer’s Association, for example, is dedicated to “a world without Alzheimer’s.” And Oxfam envisions “a just world without poverty.” A vision statement is a simple but foundational element of culture.

2. Values: A company’s values are the core of its culture. While a vision articulates a company’s purpose, values offer a set of guidelines on the behaviors and mindsets needed to achieve that vision. McKinsey & Company, for example, has a clearly articulated set of values that are prominently communicated to all employees and involve the way that firm vows to serve clients, treat colleagues, and uphold professional standards. Google’s values might be best articulated by their famous phrase, “Don’t be evil.” But they are also enshrined in their “ten things we know to be true.” And while many companies find their values revolve around a few simple topics (employees, clients, professionalism, etc.), the originality of those values is less important than their authenticity.

3. Practices: Of course, values are of little importance unless they are enshrined in a company’s practices. If an organization professes, “people are our greatest asset,” it should also be ready to invest in people in visible ways. Wegman’s, for example, heralds values like “caring” and “respect,”promising prospects “a job [they’ll] love.” And it follows through in its company practices, ranked by Fortune as the fifth best company to work for. Similarly, if an organization values “flat” hierarchy, it must encourage more junior team members to dissent in discussions without fear or negative repercussions. And whatever an organization’s values, they must be reinforced in review criteria and promotion policies, and baked into the operating principles of daily life in the firm.

4. People: No company can build a coherent culture without people who either share its core values or possess the willingness and ability to embrace those values. That’s why the greatest firms in the world also have some of the most stringent recruiting policies. According to Charles Ellis, as noted in a recent review of his book What it Takes: Seven Secrets of Success from the World’s Greatest Professional Firms, the best firms are “fanatical about recruiting new employees who are not just the most talented but also the best suited to a particular corporate culture.” Ellis highlights that those firms often have 8-20 people interview each candidate. And as an added benefit, Steven Hunt notes at Monster.com that one study found applicants who were a cultural fit would accept a 7% lower salary, and departments with cultural alignment had 30% less turnover. People stick with cultures they like, and bringing on the right “culture carriers” reinforces the culture an organization already has.

5. Narrative:Marshall Ganz was once a key part of Caesar Chavez’s United Farm Workers movement and helped structure the organizing platform for Barack Obama’s 2008 presidential campaign. Now a professor at Harvard, one of Ganz’s core areas of research and teaching is the powerof narrative. Any organization has a unique history — a unique story. And the ability to unearth that history and craft it into a narrative is a core element of culture creation. The elements of that narrative can be formal — like Coca-Cola, which dedicated an enormous resource tocelebrating its heritage and even has a World of Coke museum in Atlanta — or informal, like those stories about how Steve Jobs’ early fascination with calligraphy shaped the aesthetically oriented culture at Apple. But they are more powerful when identified, shaped, and retold as a part of a firm’s ongoing culture.

6. Place: Why does Pixar have a huge open atrium engineering an environment where firm members run into each other throughout the day and interact in informal, unplanned ways? Why does Mayor Michael Bloomberg prefer his staff sit in a “bullpen” environment, rather than one of separate offices with soundproof doors? And why do tech firms cluster in Silicon Valley and financial firms cluster in London and New York? There are obviously numerous answers to each of these questions, but one clear answer is that place shapes culture. Open architecture is more conducive to certain office behaviors, like collaboration. Certain cities and countries have local cultures that may reinforce or contradict the culture a firm is trying to create. Place — whether geography, architecture, or aesthetic design — impacts the values and behaviors of people in a workplace.

There are other factors that influence culture. But these six components can provide a firm foundation for shaping a new organization’s culture. And identifying and understanding them more fully in an existing organization can be the first step to revitalizing or reshaping culture in a company looking for change.